<!DOCTYPE html>
<html>

	<head>
		<meta charset="UTF-8">
		<title>ex_06</title>
		<script src="ex_07.js" type="text/javascript" charset="utf-8"></script>
	</head>

	<body>

		<form method="post" action="">
			你爱好的运动是？
			<input type="checkbox" id="checkboxAll_2" />全选/全部选
			<br />
			<input type="checkbox" name="items" value="足球" />足球
			<input type="checkbox" name="items" value="篮球" />篮球
			<input type="checkbox" name="items" value="羽毛球" />羽毛球
			<input type="checkbox" name="items" value="乒乓球" />乒乓球
			<br />
			<input type="button" id="checkboxAll" value="全  选" />
			<input type="button" id="checkboxNo" value="全不选" />
			<input type="button" id="checkboxRev" value="反  选" />
			<input type="button" id="send" value="提  交" />
		</form>

	</body>

</html>